BIOMOLECULES AND ENZYMES

Detailed explanation-1: -If you consume more calories than you need in a day, the excess energy is stored as lipids in adipose cells. In between meals and during exercise your body relies on these fats stores to provide energy. Lipids are also used to insulate and protect your body.

Detailed explanation-2: -The different varieties of lipids have different structures, and correspondingly diverse roles in organisms. For instance, lipids store energy, provide insulation, make up cell membranes, form water-repellent layers on leaves, and provide building blocks for hormones like testosterone.

Detailed explanation-3: -Lipids are also used to insulate and protect your body. You have a layer of fat just below your skin that helps to keep your internal body temperature regular despite the external temperature. Your vital organs, such as the kidneys, have a layer of fat around them that acts like bubble wrap to protect them from injury.

Detailed explanation-4: -Within the body, lipids function as an energy reserve, regulate hormones, transmit nerve impulses, cushion vital organs, and transport fat-soluble nutrients. Fat in food serves as an energy source with high caloric density, adds texture and taste, and contributes to satiety.

Detailed explanation-5: -Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and mammals dry because of their water-repelling nature. Lipids are also the building blocks of many hormones and are an important constituent of the plasma membrane.